Turbidity sensor

Details Turbidity sensor Turbidity sensor

1995-01-26

1998-10-27

McGraw, Vincent P.

Optics: measuring and testing

For light transmission or absorption

Of fluent material

350 70, G01N 2105

Patent

active

058284583

ABSTRACT:
A fluid turbidity or filter clog sensor comprises a light source and a detector having at least one sensor position to cross a flow path or a filter element in order to improve the correspondence of the light intensity received at the receiver in correspondence with the turbidity level or clogging level occurring in the test cell. The detector preferably includes a direct path sensor, a scattered path sensor positioned to cross the flow path from the transmitter, and the reference light sensor communicating with the source outside of the test chamber. Moreover, the direct path may be a straight line path or a reflected path through the flow path when a fluid having a low level of turbidity is passed through the test cell. Likewise, the sensor includes means for compensating for changes in the illuminating source, changes for temperature variations occurring at the test cell, and compact packaging for convenient installation and improved production capacity.

REFERENCES:
patent: 3628028 (1971-12-01), Thorsheim
patent: 3771472 (1973-11-01), Stonner et al.
patent: 4201471 (1980-05-01), Pitt et al.
patent: 4265535 (1981-05-01), Pitt
patent: 4420256 (1983-12-01), Fladda et al.
patent: 4601082 (1986-07-01), Kurz
patent: 4801204 (1989-01-01), Nakamura et al.
patent: 4874243 (1989-10-01), Perren
patent: 4906101 (1990-03-01), Lin et al.
patent: 5049742 (1991-09-01), Hosonuma et al.
patent: 5082367 (1992-01-01), Kohler et al.
patent: 5102550 (1992-04-01), Pizzino et al.
patent: 5104228 (1992-04-01), Baillie
patent: 5147560 (1992-09-01), Nichols
patent: 5173190 (1992-12-01), Picek
patent: 5230227 (1993-07-01), Kohdoh et al.
patent: 5241368 (1993-08-01), Ponstingl et al.
patent: 5241845 (1993-09-01), Ishibashi et al.
patent: 5245200 (1993-09-01), Fladda
patent: 5259219 (1993-11-01), Dausch et al.
patent: 5291626 (1994-03-01), Molnar et al.
patent: 5303029 (1994-04-01), Sioma et al.
patent: 5304492 (1994-04-01), Klinkhammer
patent: 5341661 (1994-08-01), Dausch et al.

Affiliated with

Also associated with

Rating

Turbidity sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Turbidity sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Turbidity sensor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1618001